Chicago Area Human ServicesResources intended for crisis level help for near-homeless individuals, but may be of use to other generally needy or unemployed.Best immediate advice:
DHS: 800-843-6154http://www.dhs.state.il.us
"Department of Human Services" - Fairly easy to get LINK card (foodstamps) for $100+/month, sometimes on the spot with just a few hours wait. Also provides employment counseling. Call for locations. They recommend you apply online or download forms at http://www.dhs.state.il.us/page.aspx?item=33698

Any library:http://www.chipublib.org
Even out of state ID can be used for web access, and reference librarians are trained for job and aid search help. Harder with no ID.